You are buying one or a set of controllers depending on your choice, as pictured.
These 48V/25A J&P controllers Gbooster (Old model), will also work with the Sportster, the Y12Pro as well as other similar scooters as long as they use the newer model controllers and display. Please keep in mind that it is your responsibility to make sure that it will work with yours before buying it.

Controller's case dimensions are: 9.5x5.5x3.5cm.

Feel free to contact before purchasing them for any questions or conserns you might have or if you would like to get more pictures of it.
There are no instructions with it so if you don't have the knowledge on how to fit them, we strongly suggest that you seek professional help.​​​​​​​​​​​​​
​​​​​​​All wires and plugs of the controllers are pictured.